CK-12 Foundation
Ck 12: Elem Math: Area in Grid
[Free Registration/Login may be required to access all resource tools.] The video describes how to count the area in a grid where each square on the grid is one square unit of area. The video is followed by practice problems covering the...
Khan Academy
Khan Academy: Find Area by Counting Unit Squares
Find the area of shapes by counting the unit squares inside them. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints on how to find area....
Khan Academy
Khan Academy: Find Area With Partial Unit Squares
Count unit squares and partial unit squares to find the area of shapes. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive step-by-step hints.
CPALMS
Cpalms: Area of Rectangles: A More Efficient Way?
[Free Registration/Login Required] In this lesson, students will connect the concepts of counting each square unit and multiplying the side lengths to compute the area of a rectangle. They will extend this knowledge by computing a side...
Khan Academy
Khan Academy: Create Rectangles With a Given Area
Practice finding the area of rectangles by counting unit square. Create rectangles with a given area by covering unit squares. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Khan Academy
Khan Academy: Counting Unit Squares to Find Area Formula
This tutorial includes a video, questions and explanations around using unit squares to see why multiplying side-lengths can also find the area of rectangles.
Khan Academy
Khan Academy: Understanding Area
Compare the amount of unit squares that cover figures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints related to the concept of area.
![Inside Mathematics: Garden Design [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Inside Mathematics: Garden Design [Pdf] Lesson Plan")
University of Texas
Inside Mathematics: Garden Design [Pdf]
This task challenges a student to use understanding of area to find the area of shapes on a grid.
Illustrative Mathematics
Illustrative Mathematics: 3.md the Square Counting Shortcut
This is a rectangle subdivision task; ideally instead of counting each square. students should break the letters into rectangles, multiply to find the areas, and add up the areas. Aligns with 3.MD.C: CCSS.Math.Content.3.MD.C.6 Measure...
Texas Instruments
Texas Instruments: Count Them Up! Using the Ti 73 Explorer
In this activity, you will investigate the areas of rectangles and squares by splitting them up into unit squares and/or half-unit squares and combining them.
Khan Academy
Khan Academy: Find Area With Partial Unit Squares
Count unit squares and partial unit squares to find the area of shapes.
Khan Academy
Khan Academy: Find Perimeter by Counting Unit Squares
Calculate the perimeter of a rectangle from its side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Illustrative Mathematics
Illustrative Mathematics: 6.g Same Base and Height, Variation 2
This is the second version of a task asking students to find the areas of triangles that have the same base and height. This presentation is more abstract as students are not using physical models. They still determine the area of each...
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.